South China's First 'NorthBrain-1' Intelligent Brain-Computer System Implantation Successfully Performed

Background

Spinal cord injuries can cause long-term paralysis by interrupting the neural pathways that carry motor commands from the brain to the limbs. Conventional rehabilitation approaches often yield limited restoration of function in chronic cases, particularly for high-level injuries affecting the upper limbs.

Brain-computer interface (BCI) systems have been developed to address this by detecting brain signals associated with movement intention and translating them to control external assistive devices. In China, the NorthBrain-1 has been reported as a domestically developed high-throughput wireless semi-invasive cortical BCI system featuring 128 channels. Nanfang Hospital formally launched a registered clinical study titled "Implantable Brain-Computer Interface for High Paraplegia after Spinal Cord Injury" on April 29, 2026, using this system. The hospital's neurosurgery team, which had prior experience with related neural reconstruction techniques such as spinal cord stimulation combined with exoskeletons, led the effort.

What was achieved

On May 19, 2026, the neurosurgery team at Nanfang Hospital led by chief physician Long Hao successfully completed South China's first implantation of the NorthBrain-1 flexible intracranial cortical brain-computer interface. The patient, referred to in reports as Mr. Liu, had sustained a spinal cord injury more than 20 years earlier, resulting in high-level paralysis. He retained the ability to touch his mouth with his hand but lacked grasping function.

The procedure, which lasted approximately four hours and utilized navigation for precise electrode placement over the hand motor cortex, resulted in stable real-time brain signal acquisition upon activation of the system. The patient remained stable postoperatively with no reported intraoperative complications such as neural injury or active bleeding. He has now entered the rehabilitation training phase, during which the system is intended to support reconstruction of basic functions such as grasping through mind-controlled external devices. Reports indicate the NorthBrain-1 had previously been used in multiple cases at other Chinese hospitals with cumulative safe operational time reported in the tens of thousands of hours.

How it works

Spinal cord injury severs the connection between the brain's motor commands and the body's muscles. The NorthBrain-1 system is designed to create a bypass by directly recording signals from the brain. During surgery, a thin, flexible electrode array with 128 channels is placed on the outer surface of the dura mater (the protective membrane covering the brain) above the specific cortical region controlling hand and arm movements. This epidural placement avoids opening the dura or contacting brain tissue directly.

A coin-sized implanted processor is embedded in a prepared recess in the skull. This unit collects the high-frequency neural signals associated with imagined or intended movements, transmits them wirelessly, and supports wireless recharging, eliminating exposed percutaneous wires. An external decoder uses algorithms to interpret these signals with reported low latency (under 100 milliseconds in system specifications from related procedures) and converts the decoded motor intentions into commands for connected rehabilitation equipment, such as a pneumatic glove or exoskeleton. The device then physically assists the paralyzed limb to execute the intended action, such as closing the hand to grasp an object. Training with the system is expected to refine signal decoding and potentially promote neural plasticity.

What it means for international patients

Nanfang Hospital maintains the Huiqiao Medical Center, established in 1979, as a dedicated service for international and VIP patients. It has served individuals from more than 90 countries and regions and was selected in 2026 among Guangdong province's first batch of international medical service pilot hospitals. The center coordinates with specialist departments, including neurosurgery, and provides multilingual support.

The NorthBrain-1 implantation described is part of a registered clinical trial with defined inclusion criteria, generally targeting adults aged 18-65 with chronic cervical spinal cord injury lasting over one year who show no further improvement after standard rehabilitation. Eligibility requires meeting specific functional, cognitive, and health standards, and participants receive multidisciplinary care. International patients interested in this or similar care must contact the hospital directly to undergo assessment, confirm current trial status or availability, and verify personal eligibility. Outcomes vary by individual case, and no specific treatment guarantees apply outside verified medical evaluation.

About the hospital

Nanfang Hospital, the First Affiliated Hospital of Southern Medical University, is located in Guangzhou's Baiyun District, Guangdong Province. Founded in 1941 as a military hospital, it is a public Grade 3A comprehensive teaching hospital with more than 3,000 inpatient beds. It maintains national key clinical specialties and serves as a national regional medical center for trauma.

The hospital is recognized for strengths in neurosurgery (including functional and tumor procedures), nephrology (home to a National Clinical Research Center for Chronic Kidney Disease), gastroenterology, hematology, orthopedics, and infectious diseases. It has achieved high placements in national hospital reputation rankings, including A++++ status in the Fudan University China Hospital Rankings. The Huiqiao Medical Center within the hospital supports its international patient services.